Question

the outer and inner radii of a metal pipe are 6 cm and 4 cm respectively find the area of cross section of pipe of the pipe by using by a Pi equal to 3.14​

Answer 1

Answer:

Area of cross section of pipe

$= \pi( {6}^{2} - {4}^{2} ) \\ = 3.14 \times (36 - 16) \\ = 3.14 \times 20 \\ = 62.8 {cm}^{2}$

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